Medicare Enrolled

Dr. Frederic Siores, M.D.

Radiation Oncology · Largo, FL
Practice pattern: Mixed Practice— Diverse clinical practice across multiple procedure types
1301 2ND AVE SW, Largo, FL 33770
7275818767
In practice since 2006 (19 years)
NPI: 1518031434 verify on NPPES ↗
High
DATA COVERAGE
Data in 3 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Siores from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Siores

Dr. Frederic Siores is a radiation oncology in Largo, FL, with 19 years in practice. Based on federal Medicare data, Dr. Siores performed 6,676 Medicare services across 1,102 unique beneficiaries.

The Data Coverage level for Dr. Siores is High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 19 years in practice▲ Top 28% volume in FL

Medicare Practice Summary

Medicare Utilization ↗
6,676
Medicare services
Top 28% in FL for radiation oncology
1,102
Unique beneficiaries
$11
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~351 Medicare services per year of practice

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

ProcedureVolumeAvg. paidAvg. submitted
Contrast dye for imaging (iodine-based)5,580$0$0
Chest X-ray, 2 views199$22$50
Screening mammography105$124$217
CT scan of chest, without contrast88$98$262
X-ray of lower and sacral spine, 2-3 views67$22$65
X-ray of knee, 1-2 views66$22$58
Ct scan of face without contrast54$98$695
Ultrasound scan of head and neck soft tissue49$73$172
Shoulder X-ray, 2+ views48$22$52
Hip X-ray, 2-3 views46$31$74
Limited ultrasound scan of abdomen42$57$200
Complete ultrasound scan of abdomen36$83$226
Complete ultrasound scan behind abdominal cavity28$78$185
Ultrasound of both sides of head and neck blood flow24$142$283
Ultrasound study of one arm or leg veins with compression and maneuvers23$80$182
CT scan of head/brain, without contrast22$81$310
Ct scan of abdomen and pelvis before and after contrast22$265$554
Limited ultrasound scan behind abdominal cavity21$43$104
Knee X-ray, 3 views20$22$58
Limited ultrasound scan of joint or other extremity structure except blood vessels20$30$82
Complete ultrasound scan of pelvis19$76$200
Mri scan of lower spinal canal without contrast18$151$445
X-ray of upper spine, 2-3 views17$25$56
Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina14$87$225
X-ray of both hips, 2 views13$27$66
X-ray of ribs on side of body, minimum of 3 views12$28$61
Limited ultrasound scan of 1 breast12$69$129
Single contrast x-ray of upper digestive tract11$96$178
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Looking for a radiation oncology in Largo?
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Geographic Context

Radiation Oncologys within 10 mi
332
Per 100K population
34.6
County median income
$70,293
Nearest hospital
HCA FLORIDA LARGO HOSPITAL
0.0 mi

Data Sources

Provider Registry✓ NPPESWeekly updates
Medicare Enrollment✓ PECOSMonthly updates
Practice Data✓ Medicare Util.Annual (CY lag)
Industry Payments— No paymentsN/A
Disciplinary History— Not publicN/A

This provider has data in 3 of 4 available federal datasets, with a Data Coverage level of High. This measures how much public data is available about a provider — not how good they are. How we calculate this →

Summary

Dr. Siores is a mixed practice specialist, with above-average Medicare volume (top 28% in FL), with 19 years of practice experience.

This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →

Frequently Asked Questions

Is Dr. Siores experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Siores performed 5,580 contrast dye for imaging (iodine-based) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
How do Dr. Siores's costs compare to other radiation oncologys in Largo?
Dr. Siores's average Medicare payment per service is $11. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently High for Dr. Siores) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →

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About this page

All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →